29820940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{887}}^1$

素因数の和:978

約数の個数: 36

約数和(自身を含む): 64261008

約数和(自身を除く): 34440068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 887, 1681, 1774, 3362, 3548, 4435, 6724, 8405, 8870, 16810, 17740, 33620, 36367, 72734, 145468, 181835, 363670, 727340, 1491047, 2982094, 5964188, 7455235, 14910470, 29820940]

約数ペア:

[(1, 29820940), (2, 14910470), (4, 7455235), (5, 5964188), (10, 2982094), (20, 1491047), (41, 727340), (82, 363670), (164, 181835), (205, 145468), (410, 72734), (820, 36367), (887, 33620), (1681, 17740), (1774, 16810), (3362, 8870), (3548, 8405), (4435, 6724)]